Building a Better HPE Network with Throughput and Capacity

By Katie Taisey, Product Manager

When you compare throughput and routing/switching capacity within the HPE switch lines, making a decision on what to buy can become less about cramming as much as possible into your shrinking budget and more about designing a better network. 

CXtec is based out of Syracuse, NY. If you have not had the joy of flying through Syracuse International Airport (“International” may make it sound fancy, but it is really a small regional airport) then you have not had the joy of experiencing our “exit portals.” You’re probably asking, “What the heck is an exit portal?”

When leaving Syracuse airport, you enter a small windowed portal just large enough for a single person and his/her luggage. The door shuts behind you and there is a short delay before the exit door opens in front of you.

While Syracuse isn’t the only airport to have exit portals, they can represent a bottleneck for our travelers. There are benefits to this system – most notably the increased security – but the issues become clear when there are lines of passengers waiting to leave via these exit portals.

Network hardware bottlenecks

The last time I went through those exit portals, I got to thinking about network hardware. The same types of bottlenecks that occur in exit portals can also occur in networking switches. They can lead to an endless barrage of helpline calls from end users complaining their email did not get to Grandma yet, or their YouTube cat video is still buffering – which makes it not as cute.

Throughput is the amount of data moved from one place to another in a given time period. Usually this is measured in bits per second (bps). Switching capacity gives us the measurement of how many frames/packets can be handled over a given time. So throughput is how much data can actually pass through a switch; switch capacity is how much data the switch can be handling at one time.

How throughput and capacity can affect you

The chart below shows HPE switches and their throughput and switching/routing capacity. Keep in mind this compares switches with similar port counts.

  19xx OfficeConnect 2500 Access Switch 2900 Access Switch 5400 Modular Switch
 Part #  JG928A  J9772A  J9148A  J9642A
 Description  1920 48G PoE+  2530 48G PoE+  2910 48G PoE+  5406 ZL Custom Chassis
 Throughput  77.4 Mpps  77.3 Mpps  95 Mpps  564 Mpps!
 Switch/Router Capacity  104 Gbps  105 Gbps  128 Gbps  758 Gbps!


The math will quickly show that a chassis solution can cost the same, often times even less than a virtual stack of switches, especially if the port counts and needs reflect your specific requirements. The idea of considering a chassis becomes more apparent for any rack/closet with more than 144 ports (a stack of three 48-port switches).

The possible cost savings and more advanced features beyond just Mpps and Gbps can help you design and build a better network. Just take a look at this chart and see the potential for savings we’ve calculated.

 

JG928A - Quantity 3

J9772A - Quantity 3

 J9148A - Quantity 3

5400 Modular Switch*
 CXtec Price Estimate $3,897 $4,497 $4,497 $4,392


*Estimate includes: chassis with 96 10/100/1000 PoE ports, 40 10/100/1000 PoE+ ports, 8 SFP ports, 1 power supply.

These are just the kinds of equations we do every day at CXtec. And it’s not uncommon for trips to the airport to get us thinking about throughput and switching/routing capacity.

We have a team of product managers and engineers available to talk about your specific needs. If you ever want to discuss your unique network and circumstances, just let us know!

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